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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Neutron Crank ArmENGINEERED FOR: Weight Weenies Upgrade Specialists Custom Bike Builders Lighter. Stiffer. Faster. The Ultimate Crank Arm Upgrade. Experience a tangible performance boost with the Neutron Carbon Crank Arm. Meticulously engineered from full carbon fiber, this crankset is a testament to our obsession with stiffness, low weight, and rider friendly design. It represents a significant leap forward, offering a 25% increase in stiffness and a 12% reduction in
ENGINEERED FOR: Weight Weenies | Upgrade Specialists | Custom Bike Builders
Lighter. Stiffer. Faster. The Ultimate Crank Arm Upgrade.
Experience a tangible performance boost with the Neutron Carbon Crank Arm. Meticulously engineered from full carbon fiber, this crankset is a testament to our obsession with stiffness, low weight, and rider-friendly design. It represents a significant leap forward, offering a 25% increase in stiffness and a 12% reduction in weight over our previous generation.
At a mere 335 grams (for a set of two arms and spindle), the Neutron Crank Arm is the perfect foundation for a featherlight build, providing the rigidity needed for explosive sprints and efficient climbing.
The Neutron Advantage: Designed for the Rider
We focused on the details that matter most to mechanics and discerning cyclists:
•Effortless Installation: Built with a 24mm aluminum spindle and a SRAM 8-bolt mount, installation is straightforward. No proprietary tools or heavy-duty torque wrenches required.
•Seamless Integration: A Q-factor identical to Shimano standards means no need for biomechanical adjustments. It’s a true plug-and-play upgrade.
•Clean & Simple Setup: Forget fumbling with extra spacers. Our design ensures a faster, cleaner, and more precise installation right out of the box.
Build Your Perfect Drivetrain
The Neutron Crank Arm is the versatile heart of your custom setup. Choose your path:
•Power-Ready: Select the SIGEYI AXO power meter spider for world-class, dual-sided power measurement with +/- 1.0% accuracy.
•Power-Optional: Opt for the standard spider and upgrade to a power meter later.
•Pure Lightweight: Choose the "Spider WITHOUT powermeter" option for the absolute lightest configuration.
Tech Specs
•Crank Arm Material: Full Carbon Fiber
•Spindle: 24mm Aluminum
•Mount: SRAM 8-Bolt Direct Mount
•Weight: 335g (L/R arms + spindle)
•Available Arm Lengths: 165mm, 167.5mm, 170mm, 172.5mm
•Power Meter Spider (Optional): SIGEYI AXO (+/- 1.0% accuracy)
Compatibility
•Frame: Compatible with most road frames using a 24mm bottom bracket standard.
•Chainrings: Compatible with any SRAM 8-bolt direct mount chainring or power meter spider.
The foundation of speed is stiffness and low weight. Build your dream bike starting with the Neutron Crank Arm.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 3
Heavier fabric, very durable
Fit Type: Regular Fit, Color: Grey, Size: Large
3 stars. Pretty nice shirt but the fabric is a bit firmer than i like. I iron it when i usually wear it so that it looks half decent since wrinkle resistance is low or poor. I usually have to use a higher setting on the fabric since the material is thick making it alot heavier. Overall great for the lower end cost, anything that beats it would probably be double the price. I work in a cubicle so this works well for me, a simple shirt, with a simple color.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
True to size, good quality, great value!
Fit Type: Regular Fit, Color: White, Size: Medium
Great quality! Amazing thick material! Perfect basic button down shirt!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
★★★★★ 4
No Shirt Pocket!
Fit Type: Regular Fit, Color: Blue Stripe, Size: X-Large
No Pocket! The material was nice quality, a little thicker than I would have anticipate for a low priced shirt, and very soft. The only disappointment was there was not shirt pocket. I suppose I did not look closely enough at the photos to notice that before I purchased. Otherwise, this is a very comfortable shirt.
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Great shirt
Looks so good on hubby he likes the fit very comfortable
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Definitely recommend
Color: Medieval Blue, Size: Large
Very nice shirt
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
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